Nothing
test_that("evalFormula() does not discard the class of a list", {
res <- evalFormula(structure(list(1, ~x, ~x + 1), class = "FOO"), data.frame(x = 2))
expect_s3_class(res, "FOO")
})
test_that("evalFormula() evaluates formulae in a list", {
res <- evalFormula(structure(list(1, ~x, ~x + 1), class = "FOO"), data.frame(x = 2))
expect_equal(res[[2]], 2)
expect_equal(res[[3]], 3)
})
Any scripts or data that you put into this service are public.
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.